The dominant language in South America is Portuguese.
The slope of the line is m = -1
Industrialization occurs when machines and industry are introduced and occur on a large scale.
I think it is the Biospere
Freezing point of the water is innate property. Therefore, I would say that the freezing point of water from 1 billion years ago would still be the same as to what temperature the water would freeze today. Thus, I choose letter D. 0°C.
